Ukraine prosecutor offered information related to Biden in exchange for ambassador’s ouster, newly released materials show

New materials released by House Democrats appear to show Ukraine’s top prosecutor offering an associate of President Trump’s personal attorney, Rudolph W. Giuliani, damaging information related to former vice president Joe Biden if the Trump administration recalled the U.S. ambassador to Ukraine.

The text messages and documents provided to Congress by former Giuliani associate Lev Parnas also show that before the ambassador, Marie Yovanovitch, was removed from her post, a Parnas associate now running for Congress sent menacing text messages suggesting that he had Yovanovitch under surveillance in Ukraine. A lawyer for Yovanovitch said Tuesday that the episode should be investigated.

The cache of materials released by House investigators late Tuesday exposed a number of previously unknown details about efforts by Giuliani and his associates to obtain material in Ukraine that would undermine Trump’s Democratic opponents.